This image is NOT what I'd recommend unless you think they'd like the humour of it. 
The image shows "Gabrielle d'Estrées and one of her sisters". It is a painting by an unknown artist dated c. 1594. It is in the Louvre in Paris and is usually thought to be the work of a painter from the Fontainebleau School.
The painting portrays Gabrielle d'Estrées, mistress of King Henry IV of France, sitting in a bath, holding a ring. Her sister Julienne-Hyppolite-Joséphine sits beside her and pinches d'Estrées' right nipple. Both women are nude apart from their pearl earrings, and visible over the rim of the tub from their waists upward. The women are revealed by a parting curtain, as though in a stage play. A seamstress works in the background beside a large fireplace with a painting of a male nude hung above.
This image is NOT what I'd recommend unless you think they'd like the humour of it. The image shows "Gabrielle d'Estrées and one of her sisters". It is a painting by an unknown artist dated c. 1594. It is in the Louvre in Paris and is usually thought to be the work of a painter from the Fontainebleau School. The painting portrays Gabrielle d'Estrées, mistress of King Henry IV of France, sitting in a bath, holding a ring. Her sister Julienne-Hyppolite-Joséphine sits beside her and pinches d'Estrées' right nipple. Both women are nude apart from their pearl earrings, and visible over the rim of the tub from their waists upward. The women are revealed by a parting curtain, as though in a stage play. A seamstress works in the background beside a large fireplace with a painting of a male nude hung above.